想备考2017职称英语卫生类C级的同学，下面是沪江小编整理的概括大意练习题汇总，大家可以参考一下。

　　1.The VLT(Very Large Telescope)is the world's largest telescope(望远镜)and is taking astronomers(天文学家)further back to the Big Bang than they ever thought possible.Located 2,600 metres up in the Chilean Andes,it has four huge mirrors,each about the size of a London bus.The VLT is so powerful it can spot a burning match 10,000 kilometres away.

　　2.This astonishing power will allow astronomers to see events in space from the birth of stars to the collision(碰撞)of galaxies(星系)on the edge of the cosmos(宇宙).The VLT is giving astronomers their best-ever view of the cosmos.The power of the VLT to see the smallest detail at the furthest distances makes its designers amazed.

　　3.Take the case of Eta Carinae,one of the most explosive stars in the universe.This star produces ultraviolet laser rays(紫外线)and it will destroy itself in a few million years' time.It is five times brighter than the sun and when it explodes it is going to be a sight worth waiting for!

　　4.But it is at distances of millions,even billions,of light years that the VLT really shows its power.The VLT can detect light that set out on its journey before the earth even existed.This gives astronomers their first-ever detailed views of events that took place in the earliest days of the cosmos.

　　5.In other words,the VLT is a kind of a time machine.It takes astronomers back to a time when complete galaxies crashed into each other.The effects of these past collisions can now be seen by scientists,and astronomers believe the telescope will reveal more about these exciting events in the years to come.One day,we might be able to say we have traveled back to the beginning of time,and we will have a much clearer picture of how our planet was born.

　　1.Paragraph 1 ___________.

　　2.Paragraph 2 ___________.

　　3.Paragraph 3 ___________.

　　4.Paragraph 4 ___________.

　　A.Events that took place before the earth existed

　　B.Power of the telescope

　　C.Details of Eta Carinae

　　D.Invention of a time machine

　　E.Biggest telescope

　　F.Birth of the new worlds

　　5.The VLT will allow scientists to see events ___________.

　　6.The designers of the VLT are surprised at ___________.

　　7.Eta Carinae is taken ___________.

　　8.Scientists believe the VLT will tell us more about ___________.

　　 detecting power

　　ns of light years away in space

　　 location of the VLT

　　 an example

　　 birth of the earth

　　 rotation of the earth

　　参考答案:1.E 2.B 3.C 4.A 5.B 6.A 7.D 8.E

　　Geology and Health

　　The importance of particular metals in the human diet has been realized within the past few decades, and the idea that geology might be related to health has been recognized for a number of elements such as iodine, zinc and selenium. For example, soils with low iodine contents produce crops, and animals deficient in iodine. A lack of iodine in the human diet leads to some serious diseases.

　　The ultimate source of metals within the human body is rocks, which weather into soil, gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth. The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemistry and health of plants, animals and people.

　　So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems. Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled. However, small children are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.

　　Heavy metals are persistent; they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.

　　In contrast, naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures, despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.

　　There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils. Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body. Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.

　　A. No evidence to indicate bad effects of naturally contaminated soil

　　B. Potential hazards of human contaminated soils

　　C. Research on channels of heavy metals getting into human food chain

　　D. Geology and health problems

　　E. Rocks-the ultimate source of soil pollution

　　F. Long- term health effects on children

　　1. Paragraph 1

　　2. Paragraph 3

　　3. Paragraph 4

　　4. Paragraph 6

　　A. industrially polluted soils

　　B. rock and soil chemistry

　　C. naturally polluted soils

　　D. the pathways of metals into the food chain

　　E. the element of iodine

　　F. the persistence of heavy metals

　　5. Some serious diseases is connected with deficiency of ……

　　6. It is extremely necessary to study the long-term effects caused by living on ……

　　7. Geologists are indispensable in the research project on geology and health due to their knowledge on……

　　8. Industrially contaminated sites usually require a thorough clean-up due to ……

　　Key: DABC ECBF

　　More Than 8 Hours Sleep Too Much of a Good Thing

　　1.Although the dangers of too little sleep are widely known，new research suggests that people who sleep too much may also suffer the consequences.

　　2.Investigators at the University of California in San Diego found that people who clock up 9 or 10 hours each weeknight appear to have more trouble falling and staying asleep，as well as a number of other sleep problems，than people who sleep 8 hours a night.People who slept only 7 hours each night also said they had more trouble falling asleep and feeling refreshed after a night’s sleep than 8-hour sleepers.

　　3.These findings, which DL Daniel Kripke reported in the journal Psychosomatic Medicine, demonstrate that people who want to get a good night’s rest may not need to set aside。more than 8 hours a night.He added that“it might be a good idea'’for people who sleep more than 8 hours each night to consider reducing the amount of time they spend in bed, but cautioned that more research is needed to confirm this.

　　4.Previous studies have shown the potential dangers of chronic shortages of sleep一for instance, one report demonstrated that people who habitually sleep less than 7 hours each night have a higher risk of dying within a fixed period than people who sleep more.

　　5.For the current report，Kripke reviewed the responses of 1，004 adults to sleep questionnaires，in which participants indicated how much they slept during the Week and whether they experienced any sleep problems.Sleep problems included waking in the middle of the night，arising early in the morning and being unable to fall back to sleep，and having fatigue interfere with day-to-day functioning.

　　6.KriDke found that people who slept between 9 and 10 hours each night were more likely to report experiencing each sleep problem than people who slept 8 hours.In an interview, Kripke noted that long sleepers may struggle to get rest at night simply because they spend too much time in bed.As evidence，he added that one way to help insomnia is to spend less time in bed.“It stands to reason that if a person spends too long a time in bed, then they’ll spend a higher percentage of time awake.”he said.

　　1. Paragraph 2 ___________.

　　2. Paragraph 4___________.

　　3. Paragraph 5___________.

　　4. Paragraph 6___________.

　　A. Keprike’s research tool

　　B. Dangers of Habitual shortages of sleep

　　C. Criticism on Kripke’s report

　　D. A way of overcoming insomnia

　　E. Sleep problems of long and short sleepers

　　F. Classification of sleep problems

　　5.To get a good night’s rest，people may not need to ___________.

　　6.Long sleepers are reported to be more likely to___________.

　　7. One of the sleep problems is waking in the middle of the night，unable to___________.

　　8. One survey showed that people who habitually ___________each night have a higher risk of dying.

　　A. fall asleep again .

　　B. become more energetic the following day

　　C. sleep less than 7 hours

　　D. confirm those serious consequences

　　E. suffer sleep problems

　　F. sleep more than 8 hours

　　参考答案：1. E　2. B　3. A　4. D　5. F　6. E　7. A　8. C

　　以上就是今天沪江小编给大家整理的：2017职称英语卫生类C级概括大意练习题汇总 希望对大家有所帮助，祝同学们考试成功!